JP5389626B2 - Curtain walls and buildings - Google Patents

Description

  The present invention relates to a curtain wall and a building to which the curtain wall is applied.

  In recent years, various buildings having a natural ventilation function have been provided from the viewpoint of environmental considerations. For example, in a building in which the outer wall is configured by a curtain wall, an opening for ventilation is formed in the invisible or lower frame or joint portion of the curtain wall, and the indoor space is ventilated through the ventilation opening. There are some (see, for example, Patent Document 1). According to a building to which this kind of curtain wall is applied, it is not necessary to open a window, so that natural ventilation can be performed even in a high-rise building.

JP 2007-308906 A

  By the way, in order to increase the ventilation amount by natural ventilation, it is necessary to secure a large opening for ventilation. However, when a large opening for ventilation is secured, this is exposed to the outside as it is, and there is a possibility that the external appearance quality of the building is significantly impaired. In addition, when a large opening for ventilation is secured, it is necessary to provide a rain shield such as a louver to prevent the intrusion of rainwater. However, it is not preferable.

  In view of the above circumstances, an object of the present invention is to provide a curtain wall and a building capable of sufficiently securing a natural ventilation amount without incurring problems in appearance quality and cost.

In order to achieve the above object, the curtain wall according to the present invention is located adjacent to the top and bottom in a state in which the upper face material is located on the outdoor side of the lower face material and a gap is secured between them. The outer wall of the building is configured by arranging a plurality of face materials by overlapping the end regions of the face materials to be formed, and the gap between the upper and lower face materials is used as a ventilation passage in the indoor space of the building A pair of upper and lower face members, which are curtain walls configured to communicate with each other and constitute a passage for communication with an indoor space, are arranged such that the upper ends of the upper face members are arranged above the ceiling plate of the indoor space and the upper part thereof. The ceiling plate is disposed between the ceiling slab and the upper surface of the face material positioned below is disposed between the floor slab of the indoor space and the ceiling plate, and the lower end of the ceiling plate forms the lower indoor space. Placed below The gap between the surface material positioned in face plate and an upper positioned towards, characterized in that communicates with the facility for ventilation duct provided between the ceiling slab and the ceiling board.

According to the present invention, since the gap between the upper face material and the lower face material with the end regions overlapped with each other is communicated with the indoor space as the ventilation passage, the indoor space is passed through the ventilation passage. Natural ventilation can be performed. In addition, it is possible to efficiently introduce the outside air into the facility ventilation duct between the ceiling slab and the ceiling board. Furthermore, if two face materials are prepared between the ceiling slab and the floor slab constituting the one floor, the indoor space can be naturally ventilated and outside air can be introduced into the facility ventilation duct. it can.

  Further, the present invention is characterized in that in the above-described curtain wall, the upper surface material and the lower surface material are gradually inclined to the outside of the room as they go downward.

  According to the present invention, it is possible to configure a ventilation passage by applying a flat curtain wall.

  Further, according to the present invention, in the curtain wall described above, an intermediate material protrudes from a lower end of the inner surface of the upper surface material at a predetermined height, and the surface is located below the intermediate material. An engagement member is provided between the upper end portion of the material and restricts relative movement between the upper surface material and the lower surface material when engaged with each other.

  According to this invention, each face material is engaged with the adjacent face material at two convenient places by the engaging member. This makes it possible to more reliably support the face material even when there is a single fixing portion for the housing such as a slab.

  Further, the present invention is characterized in that, in the curtain wall described above, at least a pair of upper and lower face members constituting a ventilation passage communicating with an indoor space is translucent.

  According to this invention, since the face material is configured to have translucency, sufficient lighting can be secured in the indoor space of the building to be applied.

  The building according to the present invention is characterized in that any one of the curtain walls described above is applied as an outer wall.

  According to the present invention, the curtain wall is applied with the gap between the upper face material and the lower face material that are overlapped with each other in the indoor space as the ventilation passage. Natural ventilation of the indoor space can be performed through the ventilation passage.

  According to the present invention, since the gap between the upper face material and the lower face material with the end regions overlapped with each other is communicated with the indoor space as a ventilation passage, the indoor space is introduced through the ventilation passage. Natural ventilation can be performed. The ventilation passage opens downwards and does not appear in the figure of the building, so even if the opening area is increased to increase the natural ventilation, the appearance quality of the building There is no fear of damaging anything. In addition, since the upper face material functions as a rain guard, it is possible to reliably prevent the intrusion of rain water without causing problems in appearance quality and cost.

FIG. 1 is a longitudinal sectional view showing an outer wall portion of a building to which a curtain wall according to an embodiment of the present invention is applied. FIG. 2 is a view of the building shown in FIG. 1 as viewed from the outdoor side. FIG. 3 is an enlarged view showing a main part of the curtain wall shown in FIG. FIG. 4 is an enlarged view showing a main part of the curtain wall shown in FIG. 5 is a cross-sectional view taken along line AA in FIG. 6 is a cross-sectional view taken along line BB in FIG.

  Hereinafter, preferred embodiments of a curtain wall and a building according to the present invention will be described in detail with reference to the accompanying drawings.

  1 and 2 show a curtain wall according to an embodiment of the present invention and a main part of a building to which the curtain wall is applied. The building illustrated here is a building having a plurality of floors. On each floor, a ceiling plate RP is disposed below the slab S disposed above, and an indoor space is formed between the slab S disposed on the lower side and the ceiling plate RP. Between the slab S and ceiling board RP arrange | positioned upwards in each floor, the ventilation duct D for facilities for performing indoor air conditioning is provided. In the following, for the sake of convenience, the slab disposed above the indoor space of the reference floor will be referred to as a “ceiling slab” and the slab disposed below will be referred to as a “floor slab”.

  The curtain wall 1 applied as an outer wall of the building is configured by arranging a plurality of face members 10 side by side in the vertical and horizontal directions. As shown in FIG. 1 to FIG. 4, each face material 10 has a face material panel inside a frame formed by framing an upper frame member 11, a lower frame member 12, and a pair of left and right vertical frame members 13, 13. 14 is held. In the present embodiment, as shown in FIG. 2, in particular, a lower frame member 12 formed in a V-shape that gradually slopes upward as it goes from the center to both sides is applied, and is convex downward. A pentagonal face member 10 is formed. Moreover, as the face material 10, as shown in FIGS. 4-6, what has the translucency which used the multi-layer glass 14a which consists of two glass plates as the face material panel 14, and one sheet on the outer surface side Two types of non-translucent glass plates 14b and inner panel aluminum panel 14c are used as the face panel 14. The dimension in the height direction of each face material 10 is configured to be approximately equal to the distance from the ceiling plate RP to the floor slab S. In the following description, when the two types of the face material 10 are distinguished, the multi-layer glass 14a as the face material panel 14 is referred to as “translucent face material 10A”, one glass plate 14b and the aluminum panel 14c. The face panel 14 is referred to as “non-translucent face 10B”.

  As shown in FIGS. 3 and 4, each face member 10 is provided with a joint piece (engagement member) 20 on the upper frame member 11, and a fixing bracket 30 and an additional member on the inner surface side. (Intermediate material) 40 is provided. The joint piece 20 is a convex component that protrudes upward from the upper surface of the upper frame member 11 along the longitudinal direction of the upper frame member 11, and a plurality of joint pieces 20 are attached to the edge portion close to the inner surface side on the upper surface of the upper frame member 11. It is.

  The fixing bracket 30 is for supporting the face material 10 on the slab S of the building, and has an attachment portion 31 and an adjustment bolt mounting portion 32. The attachment portion 31 is a portion that is attached to the inner surface of the face member 10 via the vertical frame member 13. The attachment portion 31 is provided with a bolt insertion hole 33 and a weld nut 34 at a site that is approximately in the middle of the height direction. The adjustment bolt mounting portion 32 is a portion that protrudes in a direction substantially perpendicular to a portion that is the upper end of the attachment portion 31, and includes an adjustment bolt 35. The adjustment bolt 35 is screwed into a screw hole (not shown) penetrating the adjustment bolt mounting portion 32, and the amount of protrusion from the lower surface of the adjustment bolt mounting portion 32 can be adjusted by appropriately rotating. It is. The fixing bracket 30 is fixed to a portion on the inner surface side of each face member 10 by being attached to the vertical frame member 13 via both end portions of the attaching portion 31. Specifically, as shown in FIGS. 1 and 3, the translucent face member 10A is provided with a fixing bracket 30 at the upper edge portion thereof, while the non-translucent face member 10B is shown in FIG. And as shown in FIG. 4, the fixing bracket 30 is provided in the height position used as substantially 1/3 of the total height from an upper end.

  The reinforcing material 40 is a portion that serves as a connecting portion for the face material 10 disposed above and below, and protrudes from the inner surface of the face material 10 via a support member 16 that is laid between the pair of vertical frame members 13. It is attached. As shown in FIG. 4, the protrusion amount md of the reinforcing material 40 from the face material 10 is configured to be larger than the dimension x along the indoor / outdoor direction of the face material 10, and also shown in FIGS. 4 and 5. Thus, the dimension mh along the left-right direction of the additional material 40 is formed to be the same as the width w along the left-right direction of the face material 10. As shown in FIG. 1, the height position at which the additional material 40 is provided is a portion that is above the lower end of the face member 10, for example, a portion that is approximately 1/3 of the total height from the lower end. Note that the position where the additional material 40 is provided is not limited to this, and may be any height position as long as the position is higher than the lower end on the inner surface of the face material 10.

  As is clear from FIG. 4, the additional member 40 of the face member 10 has a hollow portion 41 formed therein, and a joint receiving member (engagement member) 50 provided on the lower surface. The hollow portion 41 is an independent space for each face material 10, and has an introduction port 42 on the lower surface of the additional material 40, and has a discharge port 43 on the upper surface of the additional material 40. The introduction port 42 of the hollow portion 41 is always open at a position close to the connection portion with the support member 16 on the lower surface of the reinforcing member 40. The discharge port 43 of the hollow portion 41 opens at a position that is substantially in the center on the upper surface of the reinforcing material 40. A lid member 44 is provided so as to be openable and closable at the discharge port 43 of the additional material 40 attached to the translucent face material 10A. A duct communication conduit 45 is connected to the discharge port 43 of the additional material 40 attached to the non-translucent face material 10B. The duct communication conduit 45 constitutes a ventilation passage for connecting to the above-described facility ventilation duct D. The joint receiving member 50 is a concave member extending linearly from the lower surface of the reinforcing material 40 and projecting downward along the longitudinal direction of the reinforcing material 40, and has an engagement groove 51 on the projecting surface. The engagement groove 51 of the joint receiving member 50 is formed in a size that fits into the joint piece 20 provided in the upper frame member 11 of the face material 10, and when the joint piece 20 is fitted therein, It functions to connect the joint piece 20 and the joint receiving member 50 to each other. When the joint piece 20 is fitted, the joint receiving member 50 is located at a position where a gap 60 can be secured between the outer surface of the face material 10 disposed below and the inner surface of the face material 10 disposed above. It is arranged.

  Further, each face member 10 is provided with a wind barrier 70. The wind barrier 70 is formed by an elastic member such as rubber, and ensures the watertightness and airtightness between the face members 10 when they are arranged side by side in the vertical direction and the horizontal direction. In the present embodiment, from the upper surface of the upper frame member 11 through the side surface of the vertical frame member 13 to the side surface of the additional material 40, and further from the side surface of the additional material 40 to the lower surface of the additional material 40. A wind barrier 70 is provided. The wind barrier 70 provided on the upper surface of the upper frame member 11 and the wind barrier 70 provided on the lower surface of the reinforcing member 40 are arranged so as to be in pressure contact with each other when the joint piece 20 is connected to the joint receiving member 50. It is. The wind barriers 70 provided on the side surfaces of the vertical frame member 13 and the reinforcing member 40 are arranged so as to be in pressure contact with each other when the face members 10 are arranged along the left-right direction.

  In order to support the curtain wall 1 configured as described above as an outer wall of a building, first, as shown in FIGS. 3 and 4, the lower surface of the beam H that supports the lower surface of the ceiling slab S is interposed via a support bracket sb. Attach the fastener F and attach the fastener F to the end of the floor slab S located outside the room via the support bracket sb.

  The fastener F is a substantially L-shaped angle member having a base piece Fa attached to be substantially horizontal on the upper surface of the support bracket sb and an attachment piece Fb protruding upward from the base piece Fa. is there. In the present embodiment, when the base piece portion Fa is arranged in the horizontal direction, the fastener F that is inclined so as to be gradually separated from the one end portion as the mounting piece portion Fb protruding from one end portion goes upward is applied. doing. The attachment piece portion Fb is provided with a receiving piece portion Fc at the upper end portion, and a bolt insertion hole Fd is provided at a substantially middle portion in the height direction. Each fastener F is firmly fixed to the support bracket sb with the attachment piece Fb positioned on the outdoor side.

  The adjustment bolt mounting portion 32 of the fixing bracket 30 is disposed above the mounting piece portion Fb of the fastener F, and from this state, the bolt insertion hole Fd of the mounting piece portion Fb and the bolt insertion hole 33 of the fixing bracket 30 are used. If the mounting bolt BB is fastened to the weld nut 34, the face material 10 can be held on the slab S of the building via the fastener F and the fixing bracket 30. That is, by fastening the mounting bolt BB to the weld nut 34, relative movement of the fixing bracket 30 with respect to the fastener F in the left-right direction and the direction away from the fastener F is restricted, and the lower end surface of the adjustment bolt 35 is a receiving piece portion provided on the fastener F. By abutting against Fc, the downward movement of the fixing bracket 30 relative to the fastener F is restricted.

  At this time, in the building of the present embodiment, the fixing bracket 30 of the translucent face material 10A is fastened to the fastener F of the support bracket sb attached to the lower surface of the beam H, thereby FIG. 1 and FIG. As shown in FIG. 5, the upper end of the translucent face member 10A is positioned between the ceiling plate RP and the ceiling slab S disposed above the ceiling plate RP, and the lower end is positioned at a height substantially equal to the upper surface of the floor slab S. Let Thereby, sufficient lighting is ensured with respect to the indoor space through the multi-layer glass 14a of the translucent face member 10A disposed above the indoor space. On the other hand, regarding the non-light-transmitting face material 10B, the fixing bracket 30 is fastened to the fastener F of the support bracket sb attached to the end portion of the floor slab S, so that the upper end thereof is between the floor slab S and the ceiling plate RP. And its lower end is positioned below the ceiling plate RP of the lower floor. In addition, the code | symbol PP in FIG. 5 is the fireproof panel hold | maintained at the frame in the site | part which becomes indoor side rather than the aluminum panel 14c. This fireproof panel PP is for constituting the non-light-transmitting face material 10B in a fireproof structure.

  By repeating the above method, the translucent face material 10A and the non-translucent face material 10B are held on the slab S sequentially from the lower part of the building. When holding the face material 10 below after holding the face material 10 downward, the upper frame member 11 of the lower face material 10 and the additional material 40 of the upper face material 10 are opposed to each other, and the joint piece 20 and the joint receiving member 50 are connected to each other. In this case, as shown in FIG. 2, the face material 10 held upward with respect to the face material 10 held downward is offset by ½ of the width w in the left-right direction, and the face materials 10 arranged vertically are staggered. Arrange so that

  The curtain wall 1 configured as described above includes the upper frame member 10 of the face member 10 in which the receiving piece portion Fc of the fastener F is inclined toward the indoor upper side with respect to the mounting piece portion Fb, and is disposed below. 11 and the reinforcing material 40 of the face material 10 disposed above are opposed to each other, so that each face material 10 is gradually inclined to the outside of the room as it goes downward, and the face material 10 located below is placed. Both end regions are overlapped with each other in a state where the upper end portion is always located on the indoor side with respect to the lower end portion of the face member 10 positioned above. Moreover, between the outer surface of the face member 10 disposed below and the inner surface of the face member 10 disposed above, the joint piece 20 of the face member 10 disposed below and the upper part are disposed above. The gap 60 is secured by fitting the joint receiving member 50 of the face material 10. Furthermore, on the upper extension of the gap 60 secured between the face materials 10, the introduction ports 42 provided on the lower surface of the additional material 40 are arranged.

  As a result, as shown in FIG. 4, the outside air is guided upward along the slope of the lower face member 10, and the inner surface of the translucent face member 10A and the outer surface of the non-transparent face member 10B are The gap 60 secured between them is used as a ventilation passage 60A and reaches the inlet 42 of the additional material 40. Therefore, as shown by a two-dot chain line in FIG. 4, if the lid member 44 provided on the additional member 40 of the translucent face material 10A is opened in the indoor space, the ventilation passage 60A communicates with the indoor space. Thus, air for natural ventilation can be introduced into the indoor space from the hollow portion 41 of the reinforcing member 40 through the discharge port 43. Thereby, according to the building to which the curtain wall 1 is applied, the indoor space can be naturally ventilated even when there is no window.

  On the other hand, in the gap 60 secured between the outer surface of the translucent face member 10A and the inner surface of the non-translucent face member 10B, the outside air increases and the hollow portion 41 and the duct communication pipe are introduced from the inlet 42 of the member 40. It will be introduced into the facility ventilation duct D through the path 45.

  Here, the gap 60 secured between the face materials 10 is such that each face material 10 gradually inclines outwards downward, and therefore, the gaps 60 of the building are opened downward. It does not appear in the figure. Therefore, even when the opening area of the gap 60 is ensured, there is no risk of deteriorating the appearance quality of the building. Moreover, since the face material 10 disposed above the gap 60 also functions as a rain shield, it is possible to prevent the intrusion of water such as rain water without separately providing a rain shield such as a louver. Therefore, according to the curtain wall 1 described above, it is possible to increase the flow rate of the air passing through without causing the appearance quality and cost problems, and to increase the flow rate of the air passing therethrough. In addition, a large amount of air introduced into the ventilation duct D for equipment can be secured.

  In the embodiment described above, the bottom edge of the face material is formed so as to be convex downward, but it is not necessarily required to be convex downward, and for example, a rectangular face material is applied. Of course it's okay.

  Further, in the above-described embodiment, the joint piece and the joint receiving member that are fitted to each other are illustrated as the engaging members. However, it is not always necessary to be fitted, and the mutual movement is performed when they are engaged with each other. Other configurations may be used as long as they are regulated.

DESCRIPTION OF SYMBOLS 1 Curtain wall 10 Face material 11 Upper frame member 12 Lower frame member 13 Vertical frame member 14 Face material panel 20 Joint piece 30 Fixing bracket 40 Additional material 41 Hollow part 42 Inlet port 43 Outlet port 44 Lid member 45 Duct communication conduit 50 Joint Receiving member 51 Engaging groove 60 Gap 60A Ventilation passage 70 Wind barrier

Claims (5)

The upper face material is positioned on the outdoor side of the lower face material, and the end regions of the upper and lower adjacent face materials are overlapped with each other in a state where a gap is secured between them. It is a curtain wall that constitutes the outer wall of the building by disposing the material and communicates the gap between the upper and lower face materials as a ventilation passage to the indoor space of the building,
The pair of upper and lower face members constituting the ventilation passage communicating with the indoor space is arranged such that the upper end of the upper face member is disposed between the ceiling plate of the indoor space and the ceiling slab disposed above it, and An upper end of the face material positioned below is disposed between the floor slab of the indoor space and the ceiling plate, and a lower end thereof is disposed below the ceiling plate constituting the lower indoor space and positioned below. A curtain wall characterized in that a gap between a face material and an upper face material is communicated with a ventilation duct for equipment provided between a ceiling slab and a ceiling plate .   The curtain wall according to claim 1, wherein the upper facing member and the lower facing member are gradually inclined toward the outside of the room as they go downward. An intermediate material projects from the lower end of the inner surface of the face material positioned at a predetermined height from the lower end, and engages with each other between the intermediate material and the upper end portion of the lower face material. 2. The curtain wall according to claim 1, further comprising: an engaging member that restricts relative movement between the upper facing member and the lower facing member . 2. The curtain wall according to claim 1, wherein at least a pair of upper and lower face members constituting a ventilation passage communicating with the indoor space is translucent . The building which applied the curtain wall as described in any one of Claims 1-4 as an outer wall .

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